List the ways adopted by fire fighters to combat fires.

1.	List the ways adopted by fire fighters to combat fires.
Answer» Ways adopted by fire fighters: 1. The fire fighters immediately put off the electric mains and start spraying water on the fire. The water spray cool the combustible material below the ignition tempera¬ture. This prevents fire from spreading. Then the heat turns the water into vapours which surround the burning material and prevent supply of oxygen to the burning material. So the fire extinguishes. 2. For electrical fire accidents or fire accidents involving oil and petrol water is not useful. So fire fighters use carbondioxide. It is heavier than oxygen and does not affect the electric equipment.

Answer»

Ways adopted by fire fighters:

1. The fire fighters immediately put off the electric mains and start spraying water on the fire. The water spray cool the combustible material below the ignition tempera¬ture. This prevents fire from spreading. Then the heat turns the water into vapours which surround the burning material and prevent supply of oxygen to the burning material. So the fire extinguishes.

2. For electrical fire accidents or fire accidents involving oil and petrol water is not useful. So fire fighters use carbondioxide. It is heavier than oxygen and does not affect the electric equipment.

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